// Scintilla source code edit control
/** @file LexerBase.h
 ** A simple lexer with no state.
 **/
// Copyright 1998-2010 by Neil Hodgson <neilh@scintilla.org>
// The License.txt file describes the conditions under which this software may be distributed.

#ifndef LEXERBASE_H
#define LEXERBASE_H

namespace Scintilla {

// A simple lexer with no state
class LexerBase : public ILexerWithIdentity {
 protected:
  const LexicalClass* lexClasses;
  size_t nClasses;
  PropSetSimple props;
  enum { numWordLists = KEYWORDSET_MAX + 1 };
  WordList* keyWordLists[numWordLists + 1];

 public:
  LexerBase(const LexicalClass* lexClasses_ = nullptr, size_t nClasses_ = 0);
  virtual ~LexerBase();
  void SCI_METHOD Release() override;
  int SCI_METHOD Version() const override;
  const char* SCI_METHOD PropertyNames() override;
  int SCI_METHOD PropertyType(const char* name) override;
  const char* SCI_METHOD DescribeProperty(const char* name) override;
  Sci_Position SCI_METHOD PropertySet(const char* key, const char* val) override;
  const char* SCI_METHOD DescribeWordListSets() override;
  Sci_Position SCI_METHOD WordListSet(int n, const char* wl) override;
  void SCI_METHOD Lex(Sci_PositionU startPos, Sci_Position lengthDoc, int initStyle,
                      IDocument* pAccess) override = 0;
  void SCI_METHOD Fold(Sci_PositionU startPos, Sci_Position lengthDoc, int initStyle,
                       IDocument* pAccess) override = 0;
  void* SCI_METHOD PrivateCall(int operation, void* pointer) override;
  int SCI_METHOD LineEndTypesSupported() override;
  int SCI_METHOD AllocateSubStyles(int styleBase, int numberStyles) override;
  int SCI_METHOD SubStylesStart(int styleBase) override;
  int SCI_METHOD SubStylesLength(int styleBase) override;
  int SCI_METHOD StyleFromSubStyle(int subStyle) override;
  int SCI_METHOD PrimaryStyleFromStyle(int style) override;
  void SCI_METHOD FreeSubStyles() override;
  void SCI_METHOD SetIdentifiers(int style, const char* identifiers) override;
  int SCI_METHOD DistanceToSecondaryStyles() override;
  const char* SCI_METHOD GetSubStyleBases() override;
  int SCI_METHOD NamedStyles() override;
  const char* SCI_METHOD NameOfStyle(int style) override;
  const char* SCI_METHOD TagsOfStyle(int style) override;
  const char* SCI_METHOD DescriptionOfStyle(int style) override;
  // ILexerWithIdentity methods
  const char* SCI_METHOD GetName() override;
  int SCI_METHOD GetIdentifier() override;
  const char* SCI_METHOD PropertyGet(const char* key) override;
};

}  // namespace Scintilla

#endif
